ISSN: 1693-6930
TELKOMNIKA Vol. 11, No. 3, September 2013: 463 – 472
468 301 standard specification, a dual coding system is proposed, which is based on equipment
coding and dispatching coding. The associated coding-based as the core can effectively solve the issue that failure of dispatching coding that was caused by the failure of equipment coding.
4.1. Coding Object Classification
In order to the uniqueness and stability of unified coding system, coding object must be classified because of huge large types of equipments and flexible dispatching information in
power grid operation and management. Resources in the electric power system contain equipment resources and dispatching resources. It have a huge number of equipment
resources, such as transformers, circuit breakers, isolation switch, bus line, the voltage level, AC transmission line and DC transmission lines, etc.. Dispatching resources include regional
dispatching, provincial dispatching and the huge number of substations. Figure 5 shows the encoding object classification of power grid.
Figure 5. Relational hierarchy of the power system resource
4.2. Equipment Coding
Equipment coding adopts the object-oriented approach. Every equipment coding is uniquely determined by the properties of coding objects, which contains all or part information of
the object. The attribute information of the coding objects can achieve mutual check, which can ensure the accuracy of the coding. For example, equipment coding of a transformer is
NRBYQ20220-110200512135, NR identifies the manufacturers, BYQ identifies the type of device, 20 represents the rated capacity, 220-110 represents the ratio, 200512 identifies the
date of manufacture, 135 identifies the flow code numbers. The specific formulation of equipment coding can refer to the State Grid Corporation Production Management System
Code Trial and the equipment classification method of IEC 61968. The result would be put into the equipment coding library.
4.3. Dispatching Coding
Dispatching coding can reflect the dispatching grade of coding objects in DS Distribution System through the identification and classification of different coding object.
TELKOMNIKA ISSN: 1693-6930
Research and Design in Unified Coding Architecture for Smart Grids Gang Han 469
Therefore, dispatching coding should contain the topological characteristics of the objects. Dispatching coding features is based on CIM grade of Distribution System Topology. For
example, the 4567 switcher of the region A, No. 123 10 kV line corresponds to dispatching coding is A123104567.
4.4. Associated coding
